import {expect, test} from "vitest";

import {siteLayout, getPaths} from "@data/site-layout.ts";

export const setDifference = <T>(a: Set<T>, b: Set<T>) =>
    new Set([...a].filter(x => !b.has(x)));

// Paths that should be known to Astro statically
const astroStaticPaths = new Set(
    Object.keys(import.meta.glob("/src/pages/**/*.astro"))
        .map((path) =>
            path
                .replace("/src/pages", "")
                .replace(/index\.astro$/, "")
                .replace(/\.astro$|\.md$/, "")
                .replace(/\/$/, "")
            || "/"
        ));

// Paths that exist in the site layout
const siteLayoutPaths = new Set([...getPaths(siteLayout), ...getPaths(siteLayout, [], true)]);

test('Astro Paths Not Empty', () => {
    expect(astroStaticPaths).not.toHaveLength(0);
});

test('Site Layout Paths Not Empty', () => {
    expect(siteLayoutPaths).not.toHaveLength(0);
});

test('Pages Missing from Site Layout', () => {
    const astroNotLayoutPaths = setDifference(astroStaticPaths, siteLayoutPaths);
    expect(astroNotLayoutPaths).toHaveLength(0);
});

test('Pages Missing from Astro Paths', () => {
    const siteLayoutNotAstroPaths = setDifference(siteLayoutPaths, astroStaticPaths);
    expect(siteLayoutNotAstroPaths).toHaveLength(0);
});